This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Binarytreestructure. An Example of tree in the meaning of tree structure in this specific case binary tree The example depicts the structure of topics in an encyclopaedia Image Binarytreestructure from English User Branko at English This work has been released into the public domain by the copyright holder This applies worldwide